public virtual void Idictionary_GetEnumerator_Step()

in clicache/integration-test/DistOpsStepsN.cs [1852:1998]

• 116 lines of code
• 11 McCabe index (conditional complexity)

    public virtual void Idictionary_GetEnumerator_Step<TKey, TValue>(IRegion<TKey, TValue> region, TypesClass type, int KeyId, int ValueId)
    {
      // Generic enumerator
      IEnumerator RegionGenericEnumerator = region.GetEnumerator();

      // Non-Generic enumerator
      IEnumerator<KeyValuePair<TKey, TValue>> RegionEnumerator = region.GetEnumerator();

      // Chk before doing generic Enumerator's MoveNext what is the value at Current and that exception is thrown.
      try
      {
        Object r = RegionGenericEnumerator.Current;
        Assert.Fail("Should have got InvalidOperationException");
      }
      catch (InvalidOperationException ex)
      {
        Util.Log("Got expected InvalidOperationException {0} ", ex);
      }

      // Chk before doing non-generic Enumerator's MoveNext what is the value at Current and that exception is thrown.
      try
      {
        Object r = RegionEnumerator.Current;
        Assert.Fail("Should have got InvalidOperationException");
      }
      catch (InvalidOperationException ex)
      {
        Util.Log("Got expected InvalidOperationException {0} ", ex);
      }
      Util.Log("Idictionary_GetEnumerator_Step 1 complete.");

      // Chk after doing Generic Enumerator's Reset, what is the value at Current and that exception is thrown.      
      RegionGenericEnumerator.Reset();
      try
      {
        Object r = RegionGenericEnumerator.Current;
        Assert.Fail("Should have got InvalidOperationException");
      }
      catch (InvalidOperationException ex)
      {
        Util.Log("Got expected InvalidOperationException {0} ", ex);
      }

      // Chk after doing non-Generic Enumerator's Reset, what is the value at Current and that exception is thrown.
      RegionEnumerator.Reset();
      try
      {
        Object r = RegionEnumerator.Current;
        Assert.Fail("Should have got InvalidOperationException");
      }
      catch (InvalidOperationException ex)
      {
        Util.Log("Got expected InvalidOperationException {0} ", ex);
      }
      Util.Log("Idictionary_GetEnumerator_Step 2 complete.");

      //Chk for equality of individual elements from within the dictionary with those with Generic enumerator's current.
      RegionGenericEnumerator.MoveNext();
      RegionGenericEnumerator.MoveNext();
      RegionGenericEnumerator.MoveNext();
      RegionGenericEnumerator.MoveNext();
      RegionGenericEnumerator.MoveNext();

      //Chk for equality of individual elements from within the dictionary with those with non Generic enumerator's current.
      RegionEnumerator.MoveNext();
      RegionEnumerator.MoveNext();
      RegionEnumerator.MoveNext();
      RegionEnumerator.MoveNext();
      RegionEnumerator.MoveNext();
      Util.Log("Idictionary_GetEnumerator_Step 3 complete.");

      //Modify region by adding 1 more element and see that accessing Generic enumerator does not throw exception.
      region.Add(type.GetTypeItem<TKey>(KeyId, 5), type.GetTypeItem<TValue>(ValueId, 5));
      try
      {
        RegionGenericEnumerator.MoveNext();
        Util.Log("No exception expected.");
      }
      catch (InvalidOperationException ex)
      {
        Assert.Fail("Got unexpected InvalidOperationException. {0} ", ex);
      }

      //Modify region by adding 1 more element and see that accessing non Generic enumerator does not throw exception.
      region.Add(type.GetTypeItem<TKey>(KeyId, 6), type.GetTypeItem<TValue>(ValueId, 6));
      try
      {
        RegionEnumerator.MoveNext();
        Util.Log("No exception expected.");
      }
      catch (InvalidOperationException ex)
      {
        Assert.Fail("Got unexpected InvalidOperationException. {0} ", ex);
      }
      Util.Log("Idictionary_GetEnumerator_Step 4 complete.");

      // Since region has 5 entries chk while enumerating, count of generic enumerator's iterator.
      RegionGenericEnumerator.Reset();
      int RegionEntryCount = 0;
      while (RegionGenericEnumerator.MoveNext())
      {
        RegionEntryCount++;
      }

      Assert.IsTrue(5 == RegionEntryCount, "Region entry count does not match.");
      RegionEntryCount = 0; //This is done for iteration where localRegionInstance calls this method.

      // Since region has 5 entries chk while enumerating, count of non-generic enumerator's iterator.
      RegionEnumerator.Reset();
      while (RegionEnumerator.MoveNext())
      {
        RegionEntryCount++;
      }

      Assert.IsTrue(5 == RegionEntryCount, "Region entry count does not match.");
      RegionEntryCount = 0;
      Util.Log("Idictionary_GetEnumerator_Step 5 complete.");

      // Chk after doing Generic Enumerator's MoveNext to end what is the value at Current and that exception is thrown.      
      RegionGenericEnumerator.MoveNext();

      try
      {
        Object r = RegionGenericEnumerator.Current;
        Assert.Fail("Should have got InvalidOperationException");
      }
      catch (InvalidOperationException ex)
      {
        Util.Log("Got expected InvalidOperationException {0} ", ex);
      }
      // Chk after doing non-Generic Enumerator's MoveNext to end what is the value at Current and that exception is thrown
      RegionEnumerator.MoveNext();
      try
      {
        Object r = RegionEnumerator.Current;
        Assert.Fail("Should have got InvalidOperationException");
      }
      catch (InvalidOperationException ex)
      {
        Util.Log("Got expected InvalidOperationException {0} ", ex);
      }
      Util.Log("Idictionary_GetEnumerator_Step 6 complete.");

      Assert.IsTrue(region.Remove(type.GetTypeItem<TKey>(KeyId, 5)), "Remove should be successfull as entry is present in the region.");

      Assert.IsTrue(region.Remove(type.GetTypeItem<TKey>(KeyId, 6)), "Remove should be successfull as entry is present in the region.");
    }